| Reference number | LBO/1/86 |
| Alternative reference number | LBO/1/248 |
| Level | File |
| Title | Copy extract from Mr Auzout's letter [to an unknown correspondant] |
| Date | 13 March 1665 |
| Description | Letter concerning Cassini's hypothesis of Comets (see preceeding two letters, LBO/1/84, and LBO/1/85) |
| Language | French |
| Extent | 7p |
| Access status | Open |
| Related records in the catalogue | LBO/1/84 |
| LBO/1/85 |
| EL/A/1 |